babble

gibberish resembling the sounds of a baby

Idle talk; senseless prattle; gabble; twaddle.

utter meaningless sounds, like a baby, or utter in an incoherent way

to talk foolishly

flow in an irregular current with a bubbling noise

divulge confidential information or secrets

To utter words indistinctly or unintelligibly; to utter inarticulate sounds; as, a child babbles.

To utter in an indistinct or incoherent way; to repeat, as words, in a childish way without understanding.